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NRF52811-QCAA-R Datasheet(PDF) 365 Page - Nordic Semiconductor

Part # NRF52811-QCAA-R
Description  nRF52811
PDF  444 Pages
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Manufacturer  NORDIC [Nordic Semiconductor]
Direct Link  https://www.nordicsemi.com/
Logo NORDIC - Nordic Semiconductor

NRF52811-QCAA-R Datasheet(HTML) 365 Page - Nordic Semiconductor

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Peripherals
/ STOPPED
Unprepare TX,
Unprepare RX
TX
entry / Unprepare TX
entry / TXSTARTED
IDLE
PREPARETX
RX
entry / Unprepare RX
entry / RXSTARTED
[ READ && (TX prepared) ]
[ WRITE && (RX prepared) ]
STOP
Stop sequence
PREPARERX
Restart sequence
ENABLE
Figure 139: TWI slave state machine
Symbol
Type
Description
ENABLE
Register
The TWI slave has been enabled via the ENABLE register
PREPARETX
Task
The TASKS_PREPARETX task has been triggered
STOP
Task
The TASKS_STOP task has been triggered
PREPARERX
Task
The TASKS_PREPARERX task has been triggered
STOPPED
Event
The EVENTS_STOPPED event was generated
RXSTARTED
Event
The EVENTS_RXSTARTED event was generated
TXSTARTED
Event
The EVENTS_TXSTARTED event was generated
TX prepared
Internal
Internal flag indicating that a TASKS_PREPARETX task has been triggered. This flag is not visible to the
user.
RX prepared
Internal
Internal flag indicating that a TASKS_PREPARERX task has been triggered. This flag is not visible to the
user.
Unprepare TX
Internal
Clears the internal 'TX prepared' flag until next TASKS_PREPARETX task.
Unprepare RX
Internal
Clears the internal 'RX prepared' flag until next TASKS_PREPARERX task.
Stop sequence
TWI protocol
A TWI stop sequence was detected
Restart sequence
TWI protocol
A TWI restart sequence was detected
Table 107: TWI slave state machine symbols
The TWI slave supports clock stretching performed by the master.
The TWI slave operates in a low power mode while waiting for a TWI master to initiate a transfer. As long
as the TWI slave is not addressed, it will remain in this low power mode.
4454_140 v1.0
365



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